Hand-actuated operating device for an operator's control station of an industrial truck

an operator's control and industrial truck technology, applied in mechanical control devices, lifting devices, controlling members, etc., can solve the problems of insufficient support of operator's hand and inability to carry out multiple functions at the same time, and achieve the effect of efficient safeguarding

Active Publication Date: 2010-01-05
JUNGHEINRICH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables the operator to safely support themselves during dynamic operations, allowing for relaxed hand positioning and efficient actuation of multiple functions, including reversing direction, horn actuation, and proportional hydraulic control, while adapting to different hand sizes and providing tactile orientation for improved usability.

Problems solved by technology

However, the operator can support his hand only insufficiently.
Supporting is possible if there are single-function levers, but several functions cannot be carried out simultaneously.

Method used

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  • Hand-actuated operating device for an operator's control station of an industrial truck
  • Hand-actuated operating device for an operator's control station of an industrial truck
  • Hand-actuated operating device for an operator's control station of an industrial truck

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Embodiment Construction

[0023]While this invention may be embodied in many different forms, there are described in detail herein a specific preferred embodiment of the invention. This description is an exemplification of the principles of the invention and is not intended to limit the invention to the particular embodiment illustrated

[0024]Referring to FIG. 6, a counterweight fork-lift truck 50 is shown in a conventional construction. A seat 52 for the driver can be recognized in the cab and, on the right-hand side of the seat, an armrest 54 at the forward end of which a control unit 10 is mounted. During an actuation of the control unit 10, the lower arm may lie, but need not, on the armrest 54. More details of the control unit 10 are evident from FIGS. 1 through 5.

[0025]FIG. 1 illustrates more details of the control unit 10 which has a shell body 12 of a plastic material. The shell body 12 is arranged at an appropriate place in the control station of an industrial truck on a base (not shown), e.g. on the...

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Abstract

A hand-actuated operating device for an operator's control unit for an industrial truck, having a stationary, raised rest for the ball of the thumb that is disposed laterally beside and in front of the standing or sitting operator, including an upper support area on which the ball of the thumb of the operator's hand is adapted to be placed from top, a forward surface facing away from the operator and a surface facing the operator, wherein the forward and backward surfaces are dimensioned so to allow the support for the ball of the thumb to be gripped between the fingers and a proximal portion of the ball that faces the wrist, a portion located in front of the forward surface which is lowered with respect to the support area is disposed such as to allow the fingers of the hand resting on the support area to be placed at an angle, and at least one control element for a function of the industrial truck is disposed on the end of the lowered portion that is located opposite the support area so as to enable its actuation by at least one finger.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Not applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH[0002]Not applicable.BACKGROUND OF THE INVENTION[0003]DE 297 14 284 U1 has made known a hand-actuated setting device for the operator's control station of a fork-lift reach truck in which three operating levers which are supported about an approximately horizontal axis and are arranged side by side in the direction of travel of the fork-lift truck are seated on a common shaft. Each operating lever has a lever head which can be gripped and actuated from above. The lower ends of the lever portions actuate hydraulic valves in such a way that the inner operating lever, which is disposed nearest to the driver, causes the load-carrying means to be raised and lowered whereas the middle one and the outer, farthest one cause the load-carrying means to move. The heads of the operating levers, as viewed from above, are located on a bent line such that if gripping changes over to another ...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): B60K23/00G05G1/01G05G1/62
CPCB66F9/20G05G1/01G05G1/02G05G1/62
InventorBEHNCKE, CHRISTOPHNIEBUHR, MICHAEL
OwnerJUNGHEINRICH AG